0.30 mol of nac2h3o2 in enough water to make 1.50 l of, Ask an Expert

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The pKa of acetic acid, HC2H3O2, is 4.76. A buffer solution was made using an unspecified amount of acetic acid and 0.30 mol of NaC2H3O2 in enough water to make 1.50 L of solution. Its pH was measured as 4.50 on a meter. How many moles of HC2H3O2 were used?

0.31 mol

0.55 mol

0.61 mol

1.09 mol

1.21 mol

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Category:- Chemistry
Reference No.:- M9702537

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